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74446190 = 25721322931
BaseRepresentation
bin1000110111111…
…11010101101110
312012002020222022
410123333111232
5123024234230
611215350142
71562532200
oct433772556
9165066868
1074446190
1139028585
1220b22352
1312567500
149c5c770
1568081e5
hex46ff56e

74446190 has 144 divisors (see below), whose sum is σ = 180247680. Its totient is φ = 22014720.

The previous prime is 74446181. The next prime is 74446217. The reversal of 74446190 is 9164447.

It is a super-2 number, since 2×744461902 = 11084470411032200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 74446190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2401475 + ... + 2401505.

It is an arithmetic number, because the mean of its divisors is an integer number (1251720).

Almost surely, 274446190 is an apocalyptic number.

74446190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74446190 is an abundant number, since it is smaller than the sum of its proper divisors (105801490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74446190 is a wasteful number, since it uses less digits than its factorization.

74446190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 74446190 is about 8628.2205581452. The cubic root of 74446190 is about 420.6757639902.

The spelling of 74446190 in words is "seventy-four million, four hundred forty-six thousand, one hundred ninety".

Divisors: 1 2 5 7 10 13 14 26 29 31 35 49 58 62 65 70 91 98 130 145 155 169 182 203 217 245 290 310 338 377 403 406 434 455 490 637 754 806 845 899 910 1015 1085 1183 1274 1421 1519 1690 1798 1885 2015 2030 2170 2366 2639 2821 2842 3038 3185 3770 4030 4495 4901 5239 5278 5642 5915 6293 6370 7105 7595 8281 8990 9802 10478 11687 11830 12586 13195 14105 14210 15190 16562 18473 19747 23374 24505 26195 26390 28210 31465 34307 36673 36946 39494 41405 44051 49010 52390 58435 62930 68614 73346 81809 82810 88102 92365 98735 116870 151931 163618 171535 183365 184730 197470 220255 240149 256711 303862 343070 366730 409045 440510 480298 513422 572663 759655 818090 1063517 1145326 1200745 1283555 1519310 2127034 2401490 2567110 2863315 5317585 5726630 7444619 10635170 14889238 37223095 74446190